Automatic switch-throw for street-railways



Patented Jan; 22, 1895.

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wwmmo TED STATES PATENT Fries.-

FRANK F. MOORE, OF ATLANTA, GEORGIA.

AUTOMATIC SWITCH-THROW FOR STREET-RAILWAYS.

SPECIFICATION forming part of Letters Patent No. 532,804, dated January 22, 1895.

Application filed March 2'7, 1894.

T0 aZZ whom it may concern.-

Be it known that I, FRANK F. MOORE, a citizen of the United States of America, residing at Atlanta, in the county of Fulton and State of Georgia, haveinvented certain new and useful Improvements in Automatic Switch-Throws for Street-Railways, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to certain new and useful improvements in switches and particularly to that class known as automatic switches for tramways, of which the following is such a full, clear, and exact description as will enable others skilled in the art to which it appertains to make and use the same.

The object of the invention is to provide switch pieces that may be readily and positively operated by the motorman or driver with slight exertion andwithout the necessity of leaving the car or decreasing the speed thereof.

A further object of the invention is to accomplish the foregoing result bya device embodying a simple construction and one that shall be strong and durable, efficient and satisfactory in use and at the same time comparatively inexpensive to manufacture.

With these and other objects in view the invention consistsin the various novel details of construction, arrangement, and combination of parts to be hereinafter more fully described, and specifically pointed out in the claims.

In describing the invention in detail reference is had to the accompanying drawings forming a part of this specification, and wherein like characters indicate corresponding parts in the several views, in which- Figure 1, is a plan view of a section of a track with my novel actuating mechanism in place. Fig. 2, is a detail View of the switch throw. Fig. 3, is a detail view in perspective of the bottom of the frog. Fig. 4, is a view in side elevation of the switch pin. Fig. 5,

is a similar view of a modified form of pin.

- Fig. 6, is a view in side elevation of a section of a rail.

In the drawings the rails are of ordinary Serial No. 505,319. (No model.)

arrangement. Hence a detail description of them is deemed unnecessary.

The switch tongue A, is also of the same general construction as those ordinarily employed except at the reduced end and on the under side the surface is cut away forming a recess 3, in which isadapted to fit the throw or lever 4. This throw 4 is formed approximately in the shape of an arrow-head and is pivoted to the bed-plate at 5, and to the frog cannot miss the throw as the throw extends diagonally across the path of travel of the switch pin, the end at all times resting against one side or the other of the rail.

It will be seen that in orderto continue on the main track here illustrated the throw should be arranged to point toward the inside rail while its being adjusted in the opposite direction would guide the car off on the side, the throw pointing at an angle to the direction of the frog.

The switch pins are illustrated by Figs. 4 and 5. That shown by Fig. 4, illustrates a form having an angular bend which engages the sides of the throw and in doingso turns in the spring as will be obvious. Fig. 5, is made of thin steel capable of bending from the spring down so it may take either side of the switch throw without strain.

It isparticularly noted that various changes may be made in the details of construction without departing materially from the general idea involved.

Having fully described my invention, what the space between the main and switch rails 3. A railway switch throw pivoted in the and designed to enter slots in the sides of the space between the rails and its sides working rails said main and switch rails having slots in s1ots,in combination with the frog to which to receive the corners of the throw for the it is pivoted substantially as described.

5 purpose described. In testimony whereof I aflix my signature 15 2. Inarailway switch the combination with in presence of two witnesses. the frog, of a throw pivoted to the bed-plate FRANK F. MOORE. and frog, the corners of said throw entering Witnesses: grooves in the side of the rails for the pur- W. J. VAN DYKE,

IO pose described. FELIX CAMP. 

